Home / 5,439.50-7,506.60-2,955.50

Finding the Fourth Proportional to 5,439.50, 7,506.60 and 2,955.50

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Solution

The fourth proportional to 5,439.50, 7,506.60 and 2,955.50 is: 4,078.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.50 : 7,506.60 = 2,955.50 : x
  2. Step 2: Convert to fraction form
    5,439.50/7,506.60 = 2,955.50/x
  3. Step 3: Cross multiply
    5,439.50x = 7,506.60 × 2,955.50
  4. Step 4: Simplify right side
    5,439.50x = 22,185,756.30
  5. Step 5: Solve for x
    x = 22,185,756.30/5,439.50
  6. Step 6: Final answer
    x = 4,078.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.